CN111897184A - A projection platform for digital media - Google Patents

Abstract

The invention discloses a digital media projection platform, comprising a casing, a telescopic mechanism, a fixing plate, a first sliding block, a second sliding block, a first connecting rod, a second connecting rod, a rotating column, a first screw rod, a second A screw, a first motor, a retractable mechanism and a fixing mechanism; the projection platform of the digital media is provided with a telescopic mechanism, when in use, the first motor drives the first screw to rotate, and the first screw and the second screw rotate together, so that the The first sliding block and the second sliding block move toward or away from each other, the two ends of the first connecting rod rotate on the first screw rod and the casing respectively, and the two ends of the second connecting rod rotate on the first screw rod and the casing, respectively The distance between the casing and the fixed plate is adjusted so as to adjust the distance between the retractable mechanism and the fixed plate, which is convenient for the viewer to pass through between the fixed plate and the retractable mechanism, and facilitates continuous viewing of the scene on the retractable mechanism.

Description

A projection platform for digital media

technical field

The invention relates to the technical field of projection, in particular to a projection platform for digital media.

Background technique

Digital media belongs to the category of engineering disciplines, and refers to the information carrier of the process of recording, processing, dissemination and acquisition in the form of binary numbers. These carriers include digital text, graphics, images, sounds, video images, animations and other sensory media, and presentation media (coding) representing these sensory media, commonly known as logical media, and physical media that store, transmit, and display logical media. . Projection of digital media refers to the projection of digital text, graphics, images, sounds, video images and animations and other sensory media, which is convenient for users to read and analyze information.

When projecting digital media onto a screen using a projector, sometimes there are no other channels during viewing, so that the viewer will pass in front of the screen, which will block the light projected by the projector. It is not conducive to the viewing of the scene on the screen, so we propose a digital media projection platform to solve the above problems.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a projection platform for digital media to solve the above-mentioned problems in the background art.

In order to achieve the above purpose, the present invention provides the following technical solutions: a digital media projection platform, comprising a casing, the casing is fixed on a telescopic mechanism, and the telescopic mechanism includes a fixed plate, a first slider, a second slider, a first A connecting rod, a second connecting rod, a rotating column, a first screw rod, a second screw rod and a first motor, one end of the first connecting rod is rotatably connected to the housing, and the other end is rotatably connected to the first slider , one end of the second connecting rod is rotatably connected to the housing, the other end is rotatably connected to the second sliding block, and the first connecting rod is rotatably connected to the second connecting rod through the rotating column, so The first slider and the second slider are both slidably connected to the fixing plate, the first slider is threadedly connected to the first screw rod, and the second slider is screwed to the second screw rod , the first screw is fixed on the second screw, the first screw and the second screw are both connected to the fixing plate in rotation, and the end of the first screw away from the second screw is sleeved with a For the first motor, the first motor is fixedly installed on the fixing plate, and the threads on the first screw rod are in opposite directions to the screw threads on the second screw rod; The housing is fixed with a fixing mechanism, and the retracting mechanism is fixed with the fixing mechanism.

Preferably, the telescopic mechanism further includes a gear a and a chain b, the fixing plate is in a trough-shaped structure, there are two first screws, the first screw is sleeved with the gear a, and the chain b meshes with the gear a.

Preferably, the retracting mechanism includes a rotating shaft, a curtain and a second motor, the rotating shaft is wound with the curtain, one end of the curtain is fixed on the rotating shaft, and the second motor is sleeved with the rotating shaft, so The second motor is mounted on the housing.

Preferably, the retracting mechanism further includes a clamping rod, the clamping rod is fixed on an end of the curtain away from the rotating shaft, and the clamping rod is engaged with the casing.

Preferably, the fixing mechanism includes a fixing rod, a fixing ring, a first snap ring, a second snap ring and a push rod, the fixing rod has an L-shaped structure, and the fixing rod is fixed on the bottom end of the casing, so The fixing ring is fixed on the fixing rod, the first clamping ring is fixed on the clamping rod, the second clamping ring is slidably connected to the first clamping ring, and the push rod is fixed on the The second snap ring, the push rod is slidably connected to the first snap ring, and the center of the fixing ring and the center of the first snap ring are at the same center.

Preferably, the fixing mechanism further includes a spring, one end of the spring is fixed to the first snap ring, and the other end of the spring is fixed to the second snap ring.

Compared with the prior art, the beneficial effect of the present invention is that: the projection platform of the digital media is provided with a telescopic mechanism, when in use, the first motor drives the first screw to rotate, and the first screw and the second screw rotate together, thereby The first sliding block and the second sliding block are moved toward or away from each other, the two ends of the first connecting rod rotate on the first screw rod and the casing respectively, and the two ends of the second connecting rod respectively rotate on the first screw rod and the casing, Thus, the distance between the casing and the fixed plate is adjusted, thereby adjusting the distance between the retractable mechanism and the fixed plate, which facilitates the viewer to pass between the fixed plate and the retractable mechanism, and facilitates continuous viewing of the scene on the retractable mechanism.

Description of drawings

Fig. 1 is the overall structure schematic diagram of the present invention;

Figure 2 is a schematic diagram of the connection structure of the telescopic mechanism and the casing shown in Figure 1;

Fig. 3 is the enlarged view of A part shown in Fig. 2;

FIG. 4 is an enlarged view of part B shown in FIG. 2 .

In the figure: 1. Housing; 2. Telescopic mechanism; 21. Fixed plate; 22. First slider; 23, Second slider; 24, First connecting rod; 25, Second connecting rod; 26, Rotating column; 27, the first screw; 28, the second screw; 29, the first motor; 29a, the gear; 29b, the chain; 3, the retractable mechanism; 31, the rotating shaft; 4, the fixing mechanism; 41, the fixing rod; 42, the fixing ring; 43, the first snap ring; 44, the second snap ring; 45, the push rod; 46, the spring.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

1-4, the present invention provides a technical solution: a digital media projection platform, including a casing 1, the casing 1 is fixed to a telescopic mechanism 2, and the telescopic mechanism 2 includes a fixing plate 21, a first sliding Block 22, second slider 23, first connecting rod 24, second connecting rod 25, rotating column 26, first screw 27, second screw 28 and first motor 29, one end of the first connecting rod 24 rotates One end of the second connecting rod 25 is rotatably connected to the outer casing 1, and the other end is rotatably connected to the second sliding block 23. The first connecting rod 24 is rotatably connected to the second connecting rod 25 through the rotating column 26, and the first sliding block 22 and the second sliding block 23 are both slidably connected to the fixing plate 21, so The first slider 22 is threadedly connected to the first screw 27, the second slider 23 is screwed to the second screw 28, the first screw 27 is fixed to the second screw 28, the The first screw 27 and the second screw 28 are both rotatably connected to the fixing plate 21 , and the first motor 29 is sleeved at the end of the first screw 27 away from the second screw 28 . The motor 29 is fixedly installed on the fixing plate 21 , the threads on the first screw 27 and the threads on the second screw 28 are in opposite directions; a retractable mechanism 3 is installed in the housing 1 , and the housing 1 is fixed There is a fixing mechanism 4 , and the retracting mechanism 3 is fixed with the fixing mechanism 4 .

Further, the telescopic mechanism 2 further includes a gear 29a and a chain 29b, the fixing plate 21 is in a trough-shaped structure, there are two first screws 27, and the first screws 27 are sleeved with the gears 29a , the chain 29b is meshed with the gear 29a; thus, it is convenient to use the gear 29a and the chain 29b to better move the symmetrically arranged first connecting rod 24 and the second connecting rod 25, which is convenient for The housing 1 is better moved.

Further, the retractable mechanism 3 includes a rotating shaft 31, a curtain 33 and a second motor 34, the rotating shaft 31 is wound with the curtain 33, one end of the curtain 33 is fixed on the rotating shaft 31, and the second motor 34 is sleeved with the rotating shaft 31, and the second motor 34 is installed on the housing 1; so that when in use, the second motor 34 is activated, and the second motor 34 drives the rotating shaft 31 to rotate, Therefore, the screen 33 is wound and released by the rotating shaft 31 .

Further, the retracting mechanism 3 further includes a clamping rod 32, the clamping rod 32 is fixed to the end of the curtain 33 away from the rotating shaft 31, and the clamping rod 32 is engaged with the casing 1; The positioning of the curtain 33 is convenient for putting down the curtain 33 .

Further, the fixing mechanism 4 includes a fixing rod 41 , a fixing ring 42 , a first snap ring 43 , a second snap ring 44 and a push rod 45 , the fixing rod 41 has an L-shaped structure, and the fixing rod 41 is fixed on the At the bottom end of the housing 1 , the fixing ring 42 is fixed on the fixing rod 41 , the first clamping ring 43 is fixed on the clamping rod 32 , and the first clamping ring 43 is slidably connected to the fixing ring 43 . The second snap ring 44, the push rod 45 are fixed to the second snap ring 44, the push rod 45 is slidably connected to the first snap ring 43, the center of the fixing ring 42 and the first The center of the snap ring 43 is at the same center; thus, it is convenient to fix the snap rod 32 and the fixing rod 41 to prevent the screen 33 from shaking.

Further, the fixing mechanism 4 further includes a spring 46, one end of the spring 46 is fixed to the first snap ring 43, and the other end of the spring 46 is fixed to the second snap ring 44; The engagement of the second snap ring 44 facilitates the reset of the second engagement.

Working principle: when the present invention is in use, first the fixing plate 21 is installed on the wall, the first motor 29 drives the first screw 27 to rotate, the first screw 27 and the second screw 28 rotate together, so that the first slider 22 Moves toward or away from the second slider 23 , the two ends of the first connecting rod 24 rotate on the first screw 27 and the housing 1 respectively, and the two ends of the second connecting rod 25 are on the first screw 27 and the housing 1 respectively Rotate to adjust the distance between the housing 1 and the fixed plate 21, thereby adjusting the distance between the curtain 33 and the fixed plate 21, so that the viewer can pass between the fixed plate 21 and the curtain 33, and it is convenient for the continuous viewing of the curtain 33. The second motor 34 rotates, and the second motor 34 drives the rotating shaft 31 to rotate, so that the end of the curtain 33 fixed with the clamping rod 32 moves in the direction of the fixing rod 41, and then the push rod 45 drives the second clamping ring 44 to the clamping One end of the rod 32 moves, the spring 46 is compressed by force, and an opening is formed between the second snap ring 44 and the first snap ring 43, then the first snap ring 43 is inserted into the fixing ring 42, and then the push rod 45 is released , the spring 46 resets the second snap ring 44, so that the end of the second snap ring 44 away from the spring 46 is in contact with the first snap ring 43, so that the first snap ring 43, the second snap ring 44 and the fixing ring 42 are fixed, preventing the Curtain 33 shakes.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "inside and outside", "up and down", "front and rear", "left and right", etc. are based on the orientation or positional relationship shown in the accompanying drawings, only for the purpose of It is convenient to describe the present invention and to simplify the description, rather than indicating or implying that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the invention.

In the present invention, unless otherwise expressly specified and limited, the terms "installation", "arrangement", "connection", "fixation" and other terms should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection , or integrated; it can be an electromechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between the two elements, unless otherwise specified For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, and substitutions can be made in these embodiments without departing from the principle and spirit of the invention and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (6)

1. A projection platform for digital media, comprising a casing (1), characterized in that: the casing (1) is fixed to a telescopic mechanism (2), and the telescopic mechanism (2) comprises a fixing plate (21), a first The sliding block (22), the second sliding block (23), the first connecting rod (24), the second connecting rod (25), the rotating column (26), the first screw rod (27), the second screw rod (28) and A first motor (29), one end of the first connecting rod (24) is rotatably connected to the housing (1), and the other end is rotatably connected to the first sliding block (22), and the second connecting rod ( One end of 25) is rotatably connected to the casing (1), the other end is rotatably connected to the second sliding block (23), and the first connecting rod (24) is rotatably connected to the second sliding block (24) through the rotating column (26). The second connecting rod (25), the first sliding block (22) and the second sliding block (23) are both slidably connected to the fixing plate (21), and the first sliding block (22) is threaded Connected to the first screw (27), the second slider (23) is threadedly connected to the second screw (28), and the first screw (27) is fixed to the second screw (28) , the first screw (27) and the second screw (28) are both rotatably connected to the fixing plate (21), and one end of the first screw (27) away from the second screw (28) is sleeved The first motor (29) is connected, the first motor (29) is fixedly mounted on the fixing plate (21), the threads on the first screw (27) and the second screw (28) The direction of the threads is opposite; the housing (1) is provided with a retractable mechanism (3), the housing (1) is fixed with a fixing mechanism (4), and the retractable mechanism (3) is fixed with the fixing mechanism (4). 2 . The projection platform for digital media according to claim 1 , wherein the telescopic mechanism ( 2 ) further comprises a gear ( 29 a ) and a chain ( 29 b ), and the fixing plate ( 21 ) is in a concave shape. 3 . Structure, the first screw (27) is provided with two, the first screw (27) is sleeved with the gear (29a), and the chain (29b) is meshed with the gear (29a). 3. A digital media projection platform according to claim 1, characterized in that: the retractable mechanism (3) comprises a rotating shaft (31), a screen (33) and a second motor (34), the rotating shaft (31) The curtain (33) is wound around, one end of the curtain (33) is fixed on the rotating shaft (31), the second motor (34) is sleeved with the rotating shaft (31), the first Two motors (34) are mounted on the casing (1). 4. A digital media projection platform according to claim 3, characterized in that: the retractable mechanism (3) further comprises a clamping rod (32), and the clamping rod (32) is fixed on the screen (32). 33) At one end away from the rotating shaft (31), the clamping rod (32) is engaged with the housing (1). 5. A digital media projection platform according to claim 4, wherein the fixing mechanism (4) comprises a fixing rod (41), a fixing ring (42), a first snap ring (43), a Two snap rings (44) and a push rod (45), the fixing rod (41) has an L-shaped structure, the fixing rod (41) is fixed on the bottom end of the housing (1), the fixing rod (41) ) is fixed with the fixing ring (42), the clamping rod (32) is fixed with the first clamping ring (43), and the first clamping ring (43) is slidably connected with the second clamping ring a ring (44), the push rod (45) is fixed to the second snap ring (44), the push rod (45) is slidably connected to the first snap ring (43), the fixing ring (42) ) and the center of the first snap ring (43) are at the same center. 6. A digital media projection platform according to claim 5, wherein the fixing mechanism (4) further comprises a spring (46), and one end of the spring (46) is fixed to the first card A ring (43), the other end of the spring (46) is fixed to the second snap ring (44).

Images